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<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	
			<script language="JavaScript">
		
			function al(){
				window.alert("弹出警告对话框!");
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		</script>
		
		
		
	<body onload="al()">
		

		
		
		
		
		
		
		
		
		
	</body>
</html>
